log4j configuration

. - - Log4j.appender.stdout=org.apache.log4j.consoleappender the #log4j. Appender.r=org.apache.log4j.dailyrollingfileappender - #log4j. Appender.r.file=/data/logs/nmc/txp-log - - + - + This sentence is the type of layout that defines the output named stdout, which can be A org.apache.log4j.HTMLLayout (Layout in HTML table Form), at Org.apache.log4j.PatternLayout (flexibility to specify layout mode),

(HttpServletRequest request, httpservletresponse response) throws Servletexception, IOException {prin Twriter pw = Response.getwriter (); Logger.info ("Hello servlet, Hello log4j"); Pw.write ("Okok"); Pw.flush ();} /** * @see Httpservlet#dopost (httpservletrEquest request, HttpServletResponse * response) */protected void DoPost (HttpServletRequest request, Httpservle Tresponse response) throws Servletexception, IOException {doget (request, r

[1] starting from scratch A). Create a Java project> Create a package> Create a Java class; B). Import jar package (One is enough.Here I am using a log4j-1.2.14.jar, C). Create log4j. properties and place it inProject root directory; Log4j. rootlogger = info, serverdailyrollingfile, stdoutLog4j. appender. serverdailyrollingfile = org. Apache.

In our project, there are some important logs to separate output to the specified file, rather than the total output to the system log file, then we log4j for us to provide such a function, below we have to step by step to see how to do. This is written in the configuration of the property, XML is similar, you want to know, you can see the official document. The project package structure tested here is as f

Original address: http://www.hankcs.com/program/java/log4j-2-console-color-configuration-with-intellij-idea.html If you are ready to open a large project, the log system is essential. LOG4J is the best log component on the Java platform, and the log4j 2 upgrades a lot of APIs and is more scalable.

Use the background:Apache log4j is a powerful log file that we need to know how our configuration files are loaded and how they are loaded when we use the IDE to configure log4j in the project.Load Mode:(1), automatically load the configuration file:LOG4J will default to find the source folder's

, Log4j.appender.r.layout.conversionpattern=%d-[ts]%p%t%c-%m%n 9, Log4j.logger.com.johnny=debug Customize the log level in each package, specifying that all classes under the Com.johnny package have a level of debug. Second, loading their own configuration fileslog4j the Log4j.properties file under the default load Classpath, you need to use Domconfigurator.configure when customizing the properties file for other names ("e:/study/

}, output similar to: 2002-10-18-22:10:28 %f The class name of the class to which the output log information belongs %l The occurrence of the output log event where the statement that outputs the log information is in the first line of the class it is in %m The information specified in the output code, such as a message in log (message) %n Output a carriage return newline character, Windows platform is "RN", UNIX platform is "n" %p output priority, or debug,info,warn,error,fa

1.3. 8. ReleaseLog4j.propertiesproject=Datasightlogdir=/home/logs/${project}###Setlog Levels # # #log4j. Rootlogger=info,stdout# config ThisProject Appender,log level:info,error #log4j. Logger.com.ts.report=info,error,bizinfo,bizerror### Console Output # # # Log4j.appender.stdout=Org.apache.log4j.ConsoleAppender Log4j.appender.stdout.Target=system. outLog4j.appender.stdout.layout=org.apache.log4j.PatternLa

If you use the spring plug-in to create a spring template project, it defaults to log4j, as long as you change the log4j configuration to use, if you create a project, you need to load the log4f package, use the following steps 1.pom.xml join Log4j's dependency pack 2. Create Log4j.xml under Src/main/resources Log4j.xml defines 3 Appender, which is the location

}-%p ][%f:%l][%t]--%m%n# Log output path and log file name log4j.appender.r.file=${log_home}/wenniuwuren-system.log# Single log file maximum capacity log4j.appender.r.maxfilesize=1024kb# maximum number of backup files log4j.appender.r.maxbackupindex=10# R-------------------- -----------------------------------------------------------log4j.appender.stdout= org.apache.log4j.consoleappenderlog4j.appender.stdout.layout= org.apache.log4j.patternlayoutlog4j.appender.stdout.layout.conversionpattern=%d%

Logmanager during initialization, reads the value of the log4j.configuration system variable, generates the URL of the configuration file, The default is Log4j.properties or Log4j.xml. Then use the Propertyconfigurator class to parse the Log4j.properties file. Read the source to understand that the Propertyconfigurator class implemented the Configurator interface, overloaded the Configure method to read the properties file, and then through the overl

1. log4j (log4j.properties) configuration file Define the log configuration file and place it in the Web-info directory. LOG4J.LOGGER.OPERATELOG=INFO,A1 # # #输出到日志文件 ### log4j.appender.a1= Org.apache.log4j.DailyRollingFileAppender log4j.appender.a1.file=e:\\file.log log4j.appender.A1.layout =org.apache.log4j.patternlayout log4j.appender.a1.layout.conversionpatte

1. log4j. rootcategory = info, stdout, R This sentence outputs the log information with the info level to the stdout and R destinations. The stdout and R definitions can be named in the following code. Levels can be divided into off, fatal, error, warn, info, debug, and all. If off is configured, no information is displayed. If Info is configured, only info, warn is displayed, but the debug information is not displayed. 2.

Some configuration of log4ja). New Java project>> new package>> new Java class;b). Import jar Package (one is enough), here I use Log4j-1.2.14.jar,c). Create a new log4j.properties, placed under project root; Log4j.rootlogger=info, Serverdailyrollingfile, stdoutLog4j.appender.serverdailyrollingfile=org.apache.log4j.dailyrollingfileappenderLog4j.appender.serverdailyrollingfile.datepattern= '. ' Yyyy

log4j Introduction log4j has three main components: loggers (Logger), appenders (output source), and layouts (layout). This can be simply understood as the log category, where the logs are to be exported and how the logs are exported. The combined use of these three components makes it easy to record the type and level of information, and to control the style and location of the log output at run time. 1. L

When log4j is called to output logs in XXX class, the following statement is called at first, Public static logger = org. Apache. log4j. Logger. getlogger (class name. Class. getname ()); This method can be used to set the Log Level of the class in the configuration file. For example, add the following lines to the configurat